Ventilator.



'L. s. LEVI.

VENTILATOR. LIPLIOATION FILED NOV. 3, 1909.

Patented Aug. 2, 1910.

INVEN T-OR WITNESSES r BY v v ATTORNEY.

UNITED STATES PATENT OFFICE.

LOUIS S. LEVI, 0F READING, PENNSYLVANIA.

VENTILATOR.

To all whom it may concern:

Be it known that I, LoUIs S. LEVI, citizen of the United States,residing at Reading, in the county of Berks and State of Pennsyl- Vania,have invented certain new and useful Improvements in Ventilators, ofwhich the following is a specification.

This invention relates to improvements in ventilators and the object inthe present in stance is to produce a device that may be applied towindows of various widths in either buildings or passenger cars.

The invention consists of a longitudinally adjustable board or bodyportion having an air chutepassing through it at an angle; means forregulating the passage of air through said chute and means for purifyingand filtering the air that passes therethrough.

The invention is more fully described in the following specification andclearly illus trated in the accompanying drawing, in which Figure 1 is aplan view; Fig. 2 is a 1ongitudinal elevation, showing the inside andFig. 3 is a central cross-sectional view of my device.

The numeral 1 designates the board or body of the ventilator. This maybe of any convenient height and it is provided at either one or bothends with sliding extension pieces 2. These extension pieces are adaptedto slide longitudinally on the board by means of guides 3, havinglongitudinal slots I therein, secured to the board and pins 5 secured tothe top of the extension pieces, which pins travel in said slots andtend not only to limit the movement thereof but to aid in retaining theproper alinement of the parts. These extension pieces provide the meansfor adjusting the device to windows of varied widths.

The numeral 6 designates the air chute. This chute passes through thebody portion 1 at about its center, and at an angle other than rightangles; the lowermost end being placed on the outside of the window. Theoutside end of the chute is normally open, but is covered by a screen 7This screen is of such a fine mesh that all solid foreign matter will beprevented from entering the chute.

The inner or upper end of the chute is provided with a closure 8. Thisclosure is hinged at one edge to the chute and it is provided with aresilient member 9 adapted Specification of Letters Patent.

Application filed November 3, 1909.

Patented Aug. 2, 1910. Serial No. 526,005.

to contact with a stop 9 secured to the inner wall of the chute, whenthe closure is lowered into position. This member 9 is in the form of asteel band, both ends of which are secured to the closure, leaving therounded body to contact with the chute and hold the closure in anyposition in which it may be placed, by its contact. This will permit avery fine adjustment of the ventilator opening. This resilient memberalso serves to prevent noise or shock in the event of the closure beingdropped into position accidentally.

It is evident that with my device, the air entering an apartment may beregulated with a nicety not ordinarily possible with devices of thisclass and at the same time insuring the entrance of only purified andfiltered air. Its adaptability to windows of varied widths and towindows of passenger cars as well as to windows of buildings, is alsoquite evident.

Having thus fully described my invention and its operation, what I claimand desire to secure by Letters Patent is 1. In a longitudinallyadjustable window ventilator, a straight body portion having a slidingextension piece at eachend; top and bottom guides for said extensionpieces provided with elongated slots; pins on said extension piecesadapted to travel in said slots; a rectangular air chute passing throughthe body portion at an angle other than right angles thereto; a screencovering the outside opening to said chute; a closure for the insideopening of the chute, hinged to the inner edge of the opening, and aresilient member in the form of a steel spring band permanently securedto said closure near one end, adapted to contact with the inner portionof the chute and thus hold the closure at any position of adjustment,determining the volume of air passing through the chute. I V

2. In a longitudinally adjustable window ventilator, a straight bodyportion having a central rectangular opening and a sliding extensionpiece at each end; top and bottom guides for said extension piecesprovided with elongated slots; pins on said extension pieces adapted totravel in the slots; a rectangular air chute located in said opening atan angle other than right angles to the body portion, said chute havingits upper corner cut away to form a flat top; a screen covering theoutside opening to said chute; a closure for the inside opening of thechute hinged to the inner edge of the opening, and a resilient member inthe form of a spring steel band permanently secured to said closure nearone end, adapted to contact with the inner portion of the chute at allpositions of adjustment and to thus hold the closure in any position todetermine the volume of air that is to pass through the chute. 10

In testimony whereof I afiix my signature, in presence of two witnesses.

LOUIS S. LEVI. lVitnesses CLARA E. YOUNG, LoUIs A. SAXXAMAN.

